The passing of Prince sent shockwaves throughout the world. While the cause of death remains unknown, new details are starting to emerge in the days leading up to his demise.

Multiple sources tell TMZ that the music legend was treated for a drug overdose six days before his death.

Just hours after he performed in Atlanta on Friday (Apr. 15), Prince’s private jet made an emergency landing in Moline, Ill., only 48 minutes from his home. His reps claim he was battling the flu, but sources tell TMZ that he was hospitalized and doctors gave him a “save shot,” which is usually administered to counteract the effects of an opiate.

Doctors reportedly advised Prince to remain in the hospital for 24 hours. His people requested a private room, but decided to leave when their demands were not met. He was released three hours later and flew home. When he left, he was reportedly “not doing well.”

The night before his death, he was spotted leaving a Walgreens near his home in Minnesota. While he frequented the store, people were especially concerned this time because he looked more frail and nervous than usual.

Authorities in Minnesota are trying to obtain hospital records to determine cause of death.